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(A) that the North American Indians have developed advanced full-year calendars basing them - 'them' is ambiguos(B) of the North American Indians who have developed advanced full-year calendars and based them - 'them' is ambiguos , evidence of North American Indians?? - doesnt make sense.(C) of the development of advanced full-year calendars by North American Indians, basing them - 'them' is ambiguos(D) of the North American Indians and their development of advanced full-year calendars based - evidence of North American Indians?? - doesnt make sense.(E) that the North American Indians developed advanced full-year calendars based - CORRECT